diff --git a/commonlibrary/ets_utils/taskpool_lib_standard/src/main/config.json b/commonlibrary/ets_utils/taskpool_lib_standard/src/main/config.json
index ce9198b557328549e9dd55f29e6c69ff3d8e4a6a..058be5ca296bc8251d687c7e1cea983288b09f42 100644
--- a/commonlibrary/ets_utils/taskpool_lib_standard/src/main/config.json
+++ b/commonlibrary/ets_utils/taskpool_lib_standard/src/main/config.json
@@ -1,6 +1,6 @@
 {
     "app": {
-        "bundleName": "com.example.childprocess",
+        "bundleName": "com.example.taskpool",
         "vendor": "example",
         "version": {
             "code": 1000000,
@@ -13,7 +13,7 @@
     },
     "deviceConfig": {},
     "module": {
-        "package": "com.example.childprocess",
+        "package": "com.example.taskpool",
         "name": ".entry",
         "srcPath": "",
         "mainAbility": ".MainAbility",
diff --git a/commonlibrary/ets_utils/taskpool_lib_standard/src/main/js/test/TaskPool.test.js b/commonlibrary/ets_utils/taskpool_lib_standard/src/main/js/test/TaskPool.test.js
index 09884fa2223f898f9e91d408705cd490bf8235c2..3c2e5531f69bd1ea87fcf63cd278e328abd72b71 100644
--- a/commonlibrary/ets_utils/taskpool_lib_standard/src/main/js/test/TaskPool.test.js
+++ b/commonlibrary/ets_utils/taskpool_lib_standard/src/main/js/test/TaskPool.test.js
@@ -19,7 +19,7 @@ export default function TaskPoolTest() {
 describe('ActsAbilityTest', function () {
     // Defines a test suite. Two parameters are supported: test suite name and test suite function.
 
-    it('TaskPoolTestClass001', 0,  async function () {
+    it('TaskPoolTestClass001', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -28,7 +28,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass002', 0,  async function () {
+    it('TaskPoolTestClass002', 0,  async function (done) {
         function Add(value1, value2) {
             if (value1 & value2)
                 return true;
@@ -40,7 +40,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass003', 0,  async function () {
+    it('TaskPoolTestClass003', 0,  async function (done) {
         function StrCat(value1, value2) {
             return value1 + value2;
         }
@@ -49,7 +49,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass004', 0,  async function () {
+    it('TaskPoolTestClass004', 0,  async function (done) {
         function StrCat(value1, value2) {
             return value1 + value2;
         }
@@ -59,7 +59,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass005', 0,  async function () {
+    it('TaskPoolTestClass005', 0,  async function (done) {
         function Sum(value1, value2) {
             function StrCat(value1, value2) {
                 return value1 + value2;
@@ -71,7 +71,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass006', 0,  async function () {
+    it('TaskPoolTestClass006', 0,  async function (done) {
         function Sum(arg1, arg2) {
             let value = [];
             value[0] = arg1[0] + arg2[0];
@@ -84,7 +84,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass007', 0,  async function () {
+    it('TaskPoolTestClass007', 0,  async function (done) {
         function Sum(arg1, arg2) {
             let value = arg1;
             value.a = arg1.a + arg2.a;
@@ -96,7 +96,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass008', 0,  async function () {
+    it('TaskPoolTestClass008', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -105,7 +105,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass009', 0,  async function () {
+    it('TaskPoolTestClass009', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -114,7 +114,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass010', 0,  async function () {
+    it('TaskPoolTestClass010', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -125,7 +125,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass011', 0,  async function () {
+    it('TaskPoolTestClass011', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -136,7 +136,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass012', 0,  async function () {
+    it('TaskPoolTestClass012', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -154,7 +154,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass013', 0, async function () {
+    it('TaskPoolTestClass013', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -164,7 +164,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass014', 0, async function () {
+    it('TaskPoolTestClass014', 0, async function (done) {
         function Add(value1, value2) {
             if (value1 & value2)
                 return true;
@@ -177,7 +177,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass015', 0,  async function () {
+    it('TaskPoolTestClass015', 0,  async function (done) {
         function StrCat(value1, value2) {
             return value1 + value2;
         }
@@ -187,7 +187,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass016', 0,  async function () {
+    it('TaskPoolTestClass016', 0,  async function (done) {
         function Sum(value1, value2) {
             function StrCat(value1, value2) {
                 return value1 + value2;
@@ -200,7 +200,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass017', 0, async function () {
+    it('TaskPoolTestClass017', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = [];
             value[0] = arg1[0] + arg2[0];
@@ -214,7 +214,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass018', 0, async function () {
+    it('TaskPoolTestClass018', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = arg1;
             value.a = arg1.a + arg2.a;
@@ -227,7 +227,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass019', 0, async function () {
+    it('TaskPoolTestClass019', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -237,7 +237,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass020', 0, async function () {
+    it('TaskPoolTestClass020', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -247,7 +247,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass021', 0, async function () {
+    it('TaskPoolTestClass021', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -259,7 +259,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass022', 0, async function () {
+    it('TaskPoolTestClass022', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -272,7 +272,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass023', 0, async function () {
+    it('TaskPoolTestClass023', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -285,7 +285,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass024', 0,  async function () {
+    it('TaskPoolTestClass024', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -307,7 +307,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass025', 0, async function () {
+    it('TaskPoolTestClass025', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -318,7 +318,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass026', 0, async function () {
+    it('TaskPoolTestClass026', 0, async function (done) {
         function Add(value1, value2) {
             if (value1 & value2)
                 return true;
@@ -332,7 +332,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass027', 0, async function () {
+    it('TaskPoolTestClass027', 0, async function (done) {
         function StrCat(value1, value2) {
             return value1 + value2;
         }
@@ -343,7 +343,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass028', 0,  async function () {
+    it('TaskPoolTestClass028', 0,  async function (done) {
         function Sum(value1, value2) {
             function StrCat(value1, value2) {
                 return value1 + value2;
@@ -357,7 +357,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass029', 0, async function () {
+    it('TaskPoolTestClass029', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = [];
             value[0] = arg1[0] + arg2[0];
@@ -372,7 +372,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass030', 0, async function () {
+    it('TaskPoolTestClass030', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = arg1;
             value.a = arg1.a + arg2.a;
@@ -386,7 +386,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass031', 0, async function () {
+    it('TaskPoolTestClass031', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -397,7 +397,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass032', 0, async function () {
+    it('TaskPoolTestClass032', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -408,7 +408,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass033', 0, async function () {
+    it('TaskPoolTestClass033', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -424,7 +424,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass034', 0, async function () {
+    it('TaskPoolTestClass034', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -440,7 +440,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass035', 0, async function () {
+    it('TaskPoolTestClass035', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -454,7 +454,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass036', 0, async function () {
+    it('TaskPoolTestClass036', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -481,7 +481,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass037', 0, async function () {
+    it('TaskPoolTestClass037', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -491,7 +491,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass038', 0, async function () {
+    it('TaskPoolTestClass038', 0, async function (done) {
         function Add(value1, value2) {
             if (value1 & value2)
                 return true;
@@ -504,7 +504,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass039', 0, async function () {
+    it('TaskPoolTestClass039', 0, async function (done) {
         function StrCat(value1, value2) {
             return value1 + value2;
         }
@@ -514,7 +514,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass040', 0,  async function () {
+    it('TaskPoolTestClass040', 0,  async function (done) {
         function Sum(value1, value2) {
             function StrCat(value1, value2) {
                 return value1 + value2;
@@ -527,7 +527,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass041', 0, async function () {
+    it('TaskPoolTestClass041', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = [];
             value[0] = arg1[0] + arg2[0];
@@ -541,7 +541,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass042', 0, async function () {
+    it('TaskPoolTestClass042', 0, async function (done) {
         function Sum(arg1, arg2) {
             let value = arg1;
             value.a = arg1.a + arg2.a;
@@ -554,7 +554,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass043', 0, async function () {
+    it('TaskPoolTestClass043', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -564,7 +564,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass044', 0, async function () {
+    it('TaskPoolTestClass044', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -574,7 +574,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass045', 0, async function () {
+    it('TaskPoolTestClass045', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -587,7 +587,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass046', 0, async function () {
+    it('TaskPoolTestClass046', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -600,7 +600,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass047', 0, async function () {
+    it('TaskPoolTestClass047', 0, async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -623,7 +623,7 @@ describe('ActsAbilityTest', function () {
         done();
     })
 
-    it('TaskPoolTestClass048', 0,  async function () {
+    it('TaskPoolTestClass048', 0,  async function (done) {
         function Sum(value1, value2) {
             return value1 + value2;
         }
@@ -634,5 +634,451 @@ describe('ActsAbilityTest', function () {
         }
         done();
     })
+
+    /**
+     * @tc.number    : TaskPoolTestClass049
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Cancel tasks that have not been executed
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass049', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+            var start = new Date().getTime();
+            while (new Date().getTime() - start < 3000) {
+              continue;
+            }
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass050
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Cancel tasks that have not been executed
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass050', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+            var start = new Date().getTime();
+            while (new Date().getTime() - start < 3000) {
+              continue;
+            }
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass051
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Cancel the task in progress
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass051', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+            var start = new Date().getTime();
+            while (new Date().getTime() - start < 3000) {
+              continue;
+            }
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task1);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not cancel the running task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass052
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Cancel the task in progress
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass052', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+            var start = new Date().getTime();
+            while (new Date().getTime() - start < 3000) {
+              continue;
+            }
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task1);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not cancel the running task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass053
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Cancel the executed task
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass053', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task1);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass054
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Cancel the executed task
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass054', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+          var task4 = new taskpool.Task(addition, 400);
+          var task5 = new taskpool.Task(addition, 500);
+          var task6 = new taskpool.Task(addition, 600);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+          var result4 = taskpool.execute(task4);
+          var result5 = taskpool.execute(task5);
+          var result6 = taskpool.execute(task6);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass055
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Cancel nonexistent task
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass055', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass056
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Cancel nonexistent task
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass056', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass057
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Canceling unexecuted tasks multiple times
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass057', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 3000) {
+            continue;
+          }
+          return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task3);
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass058
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Canceling unexecuted tasks multiple times
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass058', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        function additionDelay(arg) {
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 3000) {
+            continue;
+          }
+          return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(additionDelay, 100);
+          var task2 = new taskpool.Task(additionDelay, 200);
+          var task3 = new taskpool.Task(addition, 300);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+
+          var start = new Date().getTime();
+          while (new Date().getTime() - start < 1000) {
+            continue;
+          }
+
+          taskpool.cancel(task3);
+          taskpool.cancel(task3);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass059
+     * @tc.name      : Async Function Cancel task
+     * @tc.desc      : Cancel all tasks in sequence
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass059', 0, async function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+          var task4 = new taskpool.Task(addition, 400);
+          var task5 = new taskpool.Task(addition, 500);
+          var task6 = new taskpool.Task(addition, 600);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+          var result4 = taskpool.execute(task4);
+          var result5 = taskpool.execute(task5);
+          var result6 = taskpool.execute(task6);
+
+          taskpool.cancel(task6);
+          taskpool.cancel(task5);
+          taskpool.cancel(task4);
+          taskpool.cancel(task3);
+          taskpool.cancel(task2);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
+
+    /**
+     * @tc.number    : TaskPoolTestClass060
+     * @tc.name      : Sync Function Cancel task
+     * @tc.desc      : Cancel all tasks in sequence
+     * @tc.size      : MEDIUM
+     * @tc.type      : Function
+     * @tc.level     : Level 0
+     */
+    it('TaskPoolTestClass060', 0, function (done) {
+        function addition(arg) {
+            return arg + 1;
+        }
+        try {
+          var task1 = new taskpool.Task(addition, 100);
+          var task2 = new taskpool.Task(addition, 200);
+          var task3 = new taskpool.Task(addition, 300);
+          var task4 = new taskpool.Task(addition, 400);
+          var task5 = new taskpool.Task(addition, 500);
+          var task6 = new taskpool.Task(addition, 600);
+
+          var result1 = taskpool.execute(task1);
+          var result2 = taskpool.execute(task2);
+          var result3 = taskpool.execute(task3);
+          var result4 = taskpool.execute(task4);
+          var result5 = taskpool.execute(task5);
+          var result6 = taskpool.execute(task6);
+
+          taskpool.cancel(task6);
+          taskpool.cancel(task5);
+          taskpool.cancel(task4);
+          taskpool.cancel(task3);
+          taskpool.cancel(task2);
+        }
+        catch (e) {
+          expect(e.toString()).assertEqual("BusinessError: taskpool:: can not find the task");
+        }
+        done();
+    })
 })
 }
\ No newline at end of file